Communications on Applied Mathematics and Computation ›› 2024, Vol. 6 ›› Issue (2): 1189-1216.doi: 10.1007/s42967-023-00303-8

• ORIGINAL PAPERS • Previous Articles     Next Articles

A Simple Embedding Method for the Laplace-Beltrami Eigenvalue Problem on Implicit Surfaces

Young Kyu Lee, Shingyu Leung   

  1. Department of Mathematics, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
  • Received:2022-10-28 Revised:2023-08-01 Accepted:2023-08-04 Online:2023-10-16 Published:2023-10-16
  • Contact: Shingyu Leung,E-mail:masyleung@ust.hk;Young Kyu Lee,E-mail:ykleeac@connect.ust.hk E-mail:masyleung@ust.hk;ykleeac@connect.ust.hk
  • Supported by:
    The work of Leung was supported in part by the Hong Kong RGC 16302223.

Abstract: We propose a simple embedding method for computing the eigenvalues and eigenfunctions of the Laplace-Beltrami operator on implicit surfaces. The approach follows an embedding approach for solving the surface eikonal equation. We replace the differential operator on the interface with a typical Cartesian differential operator in the surface neighborhood. Our proposed algorithm is easy to implement and efficient. We will give some two- and three-dimensional numerical examples to demonstrate the effectiveness of our proposed approach.

Key words: Laplace-Beltrami operator, Level set method, Implicit representation, Eigenvalues, Numerical PDEs